John working in a biopharmaceutical company and is in charge of purifying insulin (mw 6,000 da, pl =7.3). in the recent experiment, the insulin was contaminated by a glycoprotein (mw-48,000 da, pl= 6.9) and protein a (mw=5,500 da, pl 10.2). john to design a process based on chromatography methods to purify his product

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy